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8111468133 = 321804149957
BaseRepresentation
bin1111000110111101…
…10010111001100101
3202221022011021102200
413203132302321211
5113103013440013
63420520525113
7405003225066
oct74336627145
922838137380
108111468133
11349279207a
1216a4620799
139c36707b2
1456d40256d
153271b7e73
hex1e37b2e65

8111468133 has 12 divisors (see below), whose sum is σ = 11717449068. Its totient is φ = 5407237440.

The previous prime is 8111468129. The next prime is 8111468143. The reversal of 8111468133 is 3318641118.

It can be written as a sum of positive squares in 2 ways, for example, as 1038321729 + 7073146404 = 32223^2 + 84102^2 .

It is not a de Polignac number, because 8111468133 - 22 = 8111468129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8111468143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137391 + ... + 187347.

It is an arithmetic number, because the mean of its divisors is an integer number (976454089).

Almost surely, 28111468133 is an apocalyptic number.

It is an amenable number.

8111468133 is a deficient number, since it is larger than the sum of its proper divisors (3605980935).

8111468133 is a wasteful number, since it uses less digits than its factorization.

8111468133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68004 (or 68001 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 8111468133 is about 90063.6893148399. The cubic root of 8111468133 is about 2009.2461991112.

It can be divided in two parts, 811 and 1468133, that added together give a square (1468944 = 12122).

The spelling of 8111468133 in words is "eight billion, one hundred eleven million, four hundred sixty-eight thousand, one hundred thirty-three".

Divisors: 1 3 9 18041 49957 54123 149871 162369 449613 901274237 2703822711 8111468133